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http://dx.doi.org/10.5515/KJKIEES.2012.23.9.1058

Design of a Metamaterial Absorber for High Isolation of a WCDMA Indoor Repeater Antenna  

Yoon, Na-Nae (Department of Electronic Engineering, Soongsil University)
Kim, Hyoung-Jun (Department of Electronic Engineering, Soongsil University)
Seo, Chul-Hun (Department of Electronic Engineering, Soongsil University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.9, 2012 , pp. 1058-1064 More about this Journal
Abstract
In this paper, an absorber based on metamaterial is proposed to improve the isolation of conventional WCDMA indoor repeater antenna. The proposed absorber is composed of Double Split Ring Resonators(DSRRs) and Complementary Spiral(CS) structure. The proposed absorber based on metamaterial is $9.6mm{\times}9.6mm{\times}1.2mm$ and absorption is about 94 % at 2.2875 GHz. The proposed antenna, which proposed absorber is applied to conventional WCDMA indoor repeater antenna, has isolation over 85 dB. Isolation is improved more than 10 dB compared with the conventional antenna. The VSWR is lower than 2 at WCDMA band from 1.92 GHz to 2.17 GHz. The radiation patterns are $60^{\circ}{\pm}10^{\circ}$ E-plane and H-plane, respectively. And, the gain is more than 6 dBi. The volume of proposed antenna with absorber based on metamaterial is $90mm{\times}90mm{\times}44.8mm$.
Keywords
WCDMA Indoor Repeater Antenna; Absorber; Metamaterial; Isolation Enhancement;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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